Crucian carp culture method

First of all, it is necessary to do a good job in the location of the pond, where there is sufficient water source, no pollution and convenient transportation, the culture pond should be 2 meters deep, the pond should be disinfected with lime, and a net wall 50 cm high should be built around the pond. fish fry should be of the same body length, no scars, good floating ability and foraging ability, and when these are done, they should be managed in a scientific way. Until it is sold on the market.

I. site selection of ponds

Aquaculture ponds should choose places with good air quality, no pollution, adequate water sources, convenient transportation, convenient drainage and irrigation, and meet these conditions can be used as sites for breeding crucian carp. Fish are prone to lack of oxygen in hot weather, and need to be prepared for oxygen exchange machinery, water pumps, special fishing nets, etc., in order to pave the way for the construction of the pond in the future.

2. Pond construction

After the breeding site is selected, the pond needs to dig out a pit with a depth of 2 meters by machinery, disinfect the pit with lime, dry it in the sun for about 2 days, then use the water pump to start injecting water into the pond, and when the water is injected, the pump is wrapped in net gauze, which can prevent sundries from blocking the pump and filter the debris inflow during water injection. after the pond water is full, observe the pond water for about 7 days, if the water level drops obviously. It is proved that there is leakage in the pond. if the water level does not drop, it is proved that there is no leakage in the pond. in the case of no leakage, bleach is sprinkled into the pond to adjust the water quality.

III. Construction around the pond

After all the ponds have been built and sorted out, the surroundings of the ponds still need to be inspected. Dykes need to be built around the ponds, and a net wall of about 50 centimeters will be built with gauze to prevent poultry from causing harm to crucian carp. If it is found that there is a rat hole in the dam, it should be repaired with cement in time, and rat poison must not be used. If the dead rat falls into the culture pond, it will do harm to crucian carp. When all the preparatory work is done, you can consider releasing fish fry.

IV. Selection and purchase of fish fry

Fish fry must be purchased in regular large-scale farms. Fish fry need to choose the same body length, no scars, no scales, no disease spots, and the fry's ability to float and find food in the water is super strong. The number of fish fry purchased is reasonable according to the size of the culture pond. Generally, about 20 adult crucian carp can be cultured per square meter, and fish fry can be configured according to this proportion. After selecting good fry, freight should be carried out as soon as possible to minimize loss.

V. Transportation management of fish fry

After the fish fry are selected and purchased, the fish fry should be transported in cages, which should ensure a smooth journey, reduce the occurrence of bumps and the supply of oxygen, which can improve the survival probability of fish fry. After the completion of transportation, the fry should be adaptively raised to pave the way for putting them into the culture pond.

VI. Temporary rearing of fish fry

After the fish fry are transported back, the fish fry can be temporarily reared in the cage, and a small amount of fish fry can be put into the cage full of pond water for temporary rearing, which can be fed to the aquatic larvae. If the fry can live safely in the pond water, they can be released in large quantities, and the stocking time is generally controlled at about 5 days.

VII. Domestication of fish fry

After the crucian carp stocking work is completed, it should be domesticated and fed in every corner of the pond at the initial stage of domestication. When the crucian carp adapts to the feed, the feeding range is gradually reduced, which can play a good role in the future feeding and management of crucian carp.

VIII. Daily management

To regularly check the isolation network around the aquaculture pond, hair line is damaged and repaired in time, the quality of the pool water should be guaranteed, the transparency should be controlled at 40 cm, and the water should be changed every 10 days, and the depth of the water change is about 30 cm. When it is found that crucian carp swimming with open mouth on the water surface, it is proved that there is not enough oxygen in the pond, so it is necessary to add oxygen to the pond in time. Crucian carp can be caught and sold on the market when they grow to about 2 jin.